CN109944635A - Working face deep concealed permeable structure is detected and administering method - Google Patents
Working face deep concealed permeable structure is detected and administering method Download PDFInfo
- Publication number
- CN109944635A CN109944635A CN201910300639.4A CN201910300639A CN109944635A CN 109944635 A CN109944635 A CN 109944635A CN 201910300639 A CN201910300639 A CN 201910300639A CN 109944635 A CN109944635 A CN 109944635A
- Authority
- CN
- China
- Prior art keywords
- working face
- permeable structure
- low resistance
- drilling
- area domain
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention provides a kind of working face deep concealed permeable structure method for surveying, belong to coal mine operating area to detect, monitor and Treatment process field, the following steps are included: 1) before working face extraction, using underground transient electromagnetic detecting method and/or micro seismic monitoring method, domain space distribution situation in low resistance abnormity area in digging coverage is verified；2) drillhole validation is carried out to drilling method and/or ground level branched hole drilling method is worn using down-hole drilling；If thering is water to gush out in drilling, then it is assumed that there are permeable structures in the low resistance abnormity area domain；Wherein, drilling runs through the low resistance abnormity area domain, and drills and be more than or equal to 30m with distance of the low resistance abnormity area domain central axes intersection apart from low resistance abnormity area domain top.The present invention also provides a kind of working face deep concealed permeable structure administering methods.Working face deep concealed permeable structure provided by the invention is detected and administering method, results of drilling are accurate.
Description
Technical field
The invention belongs to coal mine operating areas to detect, monitor and Treatment process field is more specifically to be related to a kind of work
Make face deep concealed permeable structure to detect and administering method.
Background technique
Permeable structure is the important channel that high pressure ground water is poured in that water inrush accident is caused in digging space by deep aquifers.It mentions
Before verify permeable structure spatial position, be carry out mine geological hazards work an important ring.In history, all Austria of North China type coalfield
The great water inrush accident of buck with fail to verify permeable structure spatial position in advance, fail that effective precautionary measures is taken to have in advance
It closes.
Geophysical exploration, probing are the main methods of two classes that working face deep concealed permeable structure is detected, and the two is normal
Normal fit applications are verified each other.Due to coal mine hydrogeology condition and the complexity of permeable structure, usually there is the earth in work
Physical prospecting and the inconsistent situation of results of drilling, and thus cause multiple water inrush accident, economic loss, casualties are caused,
Mine water resource is destroyed, is also easy to give geophysical exploration technology to the artificial view at " physical prospecting precision is low, detection accuracy is poor "
Popularization and application and development bring very big negative effect.
Back production gushing water, peak water occur on July 25th, 2009, Hebei province Handan mine working face
10000m3/ h causes great to flood well accident.Before back production, working face geophysical exploration and probing discovery gushing water area
Domain bottom plate 50m is with there are low-resistances, high hydraulic pressure exceptions area deeply.Amount to construction 21 down-hole drillings detected, grouting treatment, visit note
Hole drilling end aperture layer position is located at the steel gray rock in mountain (60m below bottom plate), but bore flooding quantity, grouting amount are no abnormal.Later period
Drilling stopping up water work confirms, water guide karst collapse col umn of the diameter less than 20m is developed in the position floor undulation 79m.Permeable structure hair
It educates height and differs about 20m with geophysical anomaly band height.
Back production gushing water, maximum amount of water 2470m occur on March 4th, 2018, Hebei province Xingtai mine working face3/ h, exploiting field
It is flooded.Before back production, using Integrated Geophysical Prospectings such as underground transient electromagnetic, DC electrical methods, floor undulation 70m is verified with deep presence
Low-resistance is abnormal.But drill water, grouting amount exception do not occur for hereafter drilling verification, the position.Later period drills stopping up water work and confirms,
There are water flowing fractured zones in the deep 85m below the floor undulation of projective water point position.Water flowing fractured zone development height and geophysics are different
Often band height difference 15m.
Summary of the invention
It is detected the purpose of the present invention is to provide a kind of working face deep concealed permeable structure and administering method, it is intended to solve
The technical problem of current working face deep concealed permeable structure method for surveying probe result inaccuracy.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of working face deep concealed permeable structure is provided
Method for surveying, comprising the following steps:
1) it according to coal field geology, hydrogeologic condition and getting working face spatial situation, before working face extraction, adopts
With underground transient electromagnetic detecting method and/or micro seismic monitoring method, low resistance abnormity area domain space point in digging coverage is verified
Cloth situation；
2) the low resistance abnormity area domain space distribution situation in the digging coverage verified according to the step 1) uses
Down-hole drilling carries out drillhole validation to drilling method and/or ground level branched hole drilling method is worn；If thering is water to gush out in drilling,
Then think that there are permeable structures in the low resistance abnormity area domain；Wherein, drilling run through the low resistance abnormity area domain, and drill with it is described
Distance of the low resistance abnormity area domain central axes intersection apart from low resistance abnormity area domain top is more than or equal to 30m.
Further, the transient electromagnetic detecting method includes three-dimensional probe method before working face coal seam is adopted；
The step 1) the following steps are included:
11) according to coal field geology, hydrogeologic condition and getting working face spatial situation, before working face extraction,
Three-dimensional probe method, verifies domain space distribution situation in low resistance abnormity area in digging coverage before being adopted using working face coal seam；With/
Or
12) according to coal field geology, hydrogeologic condition and getting working face spatial situation, before working face extraction,
Using micro seismic monitoring method, domain space distribution situation in low resistance abnormity area in digging coverage is verified.
Further, the transient electromagnetic detecting method further includes roadway multi-azimuth advance detection method；
Tunnelling is additionally provided in the step 1) before working face extraction and detects step, step is detected in the tunnelling
Are as follows:
It is adopted during tunnelling according to coal field geology, hydrogeologic condition and getting working face spatial situation
With the roadway multi-azimuth advance detection method, the meet head on water content or unfavorable geologic body on front and periphery of tunnel is visited
It surveys.
Further, the micro seismic monitoring method carries out micro seismic monitoring using the full arrangement that surrounds, and adjacent measuring point is longitudinal
Spacing is less than or equal to 120m, horizontal spacing is more than or equal to 10m, height difference is more than or equal to 5m.
Further, the step 2) the following steps are included:
21) when using down-hole drilling to wearing drilling method progress drillhole validation, the positions point of spudding in of through two drilling
Not Wei Yu the low resistance abnormity area domain two sides, two drilling to wearing the central axes for being a little located at the low resistance abnormity area domain
On, and two drilling to the distance worn apart from low resistance abnormity area domain top is more than or equal to 30m, two brills
Hole extends through the low resistance abnormity area domain；And/or
22) when carrying out drillhole validation using horizontal branch hole method, horizontal branch hole horizontal direction is different through the low-resistance
Normal region, vertical direction are located at the distance in aquifer in Ordovician limestone or apart from low resistance abnormity area domain top and are more than or equal to 60m.
The beneficial effect of working face deep concealed permeable structure method for surveying provided by the invention is: with prior art phase
Than working face deep concealed permeable structure method for surveying of the present invention proposes extremely dizzy concept, and then proposes a kind of new
Working face deep concealed permeable structure method for surveying.Using this method, it can effectively find out permeable structure developmental state, take in advance
Effective measures prevent the generation of water inrush accident.
Working face deep concealed permeable structure method for surveying provided in an embodiment of the present invention, it is hidden with existing working face deep
Volt permeable structure method for surveying has significantly different, and existing working face deep concealed permeable structure method for surveying thinks geophysical prospecting method
Low resistance abnormity area domain space distribution situation in the digging coverage detected, the spatial distribution feelings of as practical permeable structure
Condition, and then in drilling verification, the depth for going deep into low resistance abnormity area domain for the bottom end that drills is smaller, has only been deep into extremely dizzy shallow
Portion, without exploring downward in permeable structure, and then it is dizzy only to disclose exception, and misses out permeable structure, so that probe result is not
Accurately, the generation of water inrush accident is easily led to.
The invention proposes extremely dizzy concept, specify that low-resistance is abnormal in digging coverage that geophysical prospecting method detects
Regional space distribution situation is the permeable structure detected and the dizzy spatial distribution to combine of exception being coated on outside permeable structure
Situation.Through studying, drilling is goed deep into low resistance abnormity area generally at more than ten meters or so, therefore in drilling phase by extremely dizzy thickness
The depth in domain is adjusted to, drilling with distance of the low resistance abnormity area domain central axes intersection apart from low resistance abnormity area domain top be greater than etc.
In 30m, it is ensured that drilling can be deep into permeable structure completely, be ensure that the accuracy of results of drilling, avoided gushing water thing
Therefore generation, improve the safety of operator during coal mining activity.
The present invention also provides a kind of working face deep concealed permeable structure administering methods, comprising the following steps:
A) the permeable structure situation is detected using the working face deep concealed permeable structure method for surveying；
B) according to the spatial position in the low resistance abnormity area domain and morphological feature, the permeable structure type is determined；
C) permeable structure is administered according to the permeable structure type.
Further, step d), the step d) are provided with after the step c) are as follows:
During working face extraction, using the micro seismic monitoring method, monitor, detect it is described low in Mining failure circle of influence
Abnormal area changes in spatial distribution situation is hindered, dynamic monitoring evaluation is carried out to permeable structure regulation effect and back production safety.
Further, in the step d) monitoring duration be by before working face extraction by 1 month after back production.
Further, the micro seismic monitoring method carries out micro seismic monitoring using the full arrangement that surrounds, and adjacent measuring point is longitudinal
Spacing is less than or equal to 120m, horizontal spacing is more than or equal to 10m, height difference is more than or equal to 5m.
The beneficial effect of working face deep concealed permeable structure administering method provided by the invention is: with prior art phase
Than working face deep concealed permeable structure administering method of the present invention uses the above-mentioned working face deep concealed permeable structure side of detecting
Method carries out permeable structure and detects, it is ensured that and drilling can be deep into permeable structure completely, ensure that the accuracy of results of drilling,
It can effectively find out permeable structure developmental state, take effective control measures in advance convenient for operator, prevent the hair of water inrush accident
It is raw, the generation of water inrush accident is avoided, the safety of operator during coal mining activity is improved.Wherein, permeable structure master
Will be there are three types of type, including water guide karst collapse col umn, water conductive fault and water flowing fractured zone, the corresponding exception of these three types is dizzy to be also presented
Different form out.Water guide karst collapse col umn is extremely dizzy in nearly upright, bar shape spread；The extremely dizzy inclined plate exhibition of water conductive fault
Cloth, it is in upright plate that turnover, which occurs, at top；Water flowing fractured zone is extremely dizzy substantially similar with the extremely dizzy spatial shape of water conductive fault,
But the extension of across pitch direction is limited, and width is larger.It, can be according to underground transient electromagnetic detecting method and/or micro seismic monitoring when detecting
The detection result of method judges the type of permeable structure, later according to the concrete type of permeable structure, chooses corresponding administer
Scheme administers permeable structure.And low resistance abnormity area domain space point in digging coverage can be verified by step 1) in advance
Cloth situation provides foundation for conduit pipe improvement, it is ensured that permeable structure can be administered accurately.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is Hebei province Handan mine water guide karst collapse col umn and its abnormal dizzy detects improvement schematic diagram
Fig. 2 is Hebei province Xingtai mine water flowing fractured zone and its abnormal dizzy detects improvement schematic diagram；
Fig. 3 is flame provided in an embodiment of the present invention and permeable structure and abnormal dizzy structure contrast schematic diagram；
Fig. 4 is roadway multi-azimuth advance detection method work arrangement schematic diagram provided in an embodiment of the present invention；
Fig. 5 is three-dimensional probe methods engineering arrangement schematic diagram before working face provided in an embodiment of the present invention is adopted；
Fig. 6 is water guide karst collapse col umn provided in an embodiment of the present invention and the extremely dizzy space shape that is coated on outside water guide karst collapse col umn
State schematic diagram；
Fig. 7 is that water conductive fault provided in an embodiment of the present invention and the extremely dizzy spatial shape being coated on outside water conductive fault are shown
It is intended to；
Fig. 8 is water flowing fractured zone provided in an embodiment of the present invention and the extremely dizzy space shape that is coated on outside water flowing fractured zone
State schematic diagram；
Fig. 9 is full enclosed micro seismic monitoring methods engineering arrangement schematic diagram provided in an embodiment of the present invention；
Figure 10 is provided in an embodiment of the present invention to detect and administer borehole engineering arrangement schematic diagram.
Wherein, (a) figure is flame structure schematic diagram in Fig. 3, and (b) figure is permeable structure and abnormal dizzy structure schematic diagram.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Also referring to Fig. 1 to Figure 10, now working face deep concealed permeable structure provided in an embodiment of the present invention is detected
And administering method is illustrated.The working face deep concealed permeable structure is detected and administering method, comprising the following steps:
1) it according to coal field geology, hydrogeologic condition and getting working face spatial situation, before working face extraction, adopts
With underground transient electromagnetic detecting method and/or micro seismic monitoring method, low resistance abnormity area domain space point in digging coverage is verified
Cloth situation；
2) low resistance abnormity area domain space distribution situation in the digging coverage verified according to step 1), using down-hole drilling
Drillhole validation is carried out to drilling method and/or ground level branched hole drilling method is worn；If thering is water to gush out in drilling, then it is assumed that low
There are permeable structures in resistance abnormal area；If not thering is water to gush out in drilling, then it is assumed that water guide structure is not present in the domain of low resistance abnormity area
It makes, wherein drilling runs through low resistance abnormity area domain, and drills with low resistance abnormity area domain central axes intersection apart from low resistance abnormity area domain
The distance on top is more than or equal to 30m.Due to drilling have certain aperture, it is mentioned here " drilling with low resistance abnormity area domain in
Distance of the axis intersection apart from low resistance abnormity area domain top is more than or equal to 30m " and refers to drilling and low resistance abnormity area domain central axes
Distance of the top of blending portion apart from low resistance abnormity area domain top is more than or equal to 30m.
To disclose the two accident producing causes recorded in background technique, inventor is had conducted extensive research, and depicts
Hebei province Handan mine water guide karst collapse col umn and its abnormal dizzy detect improvement figure (as shown in Figure 1) and Hebei province Xingtai mine water guide is split
Gap band and its it is abnormal it is dizzy detect improvement figure (as shown in Figure 2), the water guide that discovery is measured by physical prospecting detection method with drilling method
Construction top differs tens meters most important the reason is that permeable structure " abnormal dizzy " is deposited apart from the distance between floor undulation
?.
Since North China type coalfield working seam bottom is with the presence of huge thick Ordovician limestone water-bearing layer, getting working face is located at Austria
Buck water level hereinafter, and permeable structure do not develop floor undulation position, belong to mining under safe waterpressure of aquifer working face lie concealed permeable structure
Field of detecting.There are when permeable structure below the working face, high pressure Ordovician karst water below permeable structure, the hydraulic pressure field of force,
Hydrodynamic field, water temperature field, mine have a meeting, an audience, etc. well under one's control under the collective effect of tectonic stress field, from aquifer in Ordovician limestone along permeable structure to digging work
Make face migration, diffusion and dip dyeing.Wherein, a part exists in high pressure Ordovician karst water with solid phase, and a part exists with liquid phase, and there are also one
Part exists with gas phase, and the high pressure Ordovician karst water of three kinds of forms is mutual during migrating, spreading and disseminating to getting working face
It acts on and converts, so that above permeable structure and periphery forms a certain range of geophysical anomaly, which can be determined
Justice is that permeable structure is extremely dizzy.
Permeable structure extremely dizzy spatial shape and range, by permeable structure type, scale, water transmitting ability, enclosing lithologies
And poor, water temperature difference of water pressure between fractured situation, water-bearing layer and getting working face etc. determines.It is abnormal dizzy generally in packet
It wraps up in shape and helmet-like is present in the top and periphery of permeable structure, spatial relationship is similar to the flame core and internal flame, flame envelope of flame
Space three-decker relationship (as shown in Figure 3).
In addition, permeable structure and it is abnormal it is dizzy in there is geophysical anomaly, transient electromagnetic detect and micro seismic monitoring in,
Low-resistivity, high water level, Gao Shuiwen, microseismic event can be showed and the features such as intensively occur.In drilling process, drilling is only bored
The general Non Apparent Abnormality of water yield, grouting amount to drill when proceeding to abnormal dizzy interior is only bored when drilling drilling to permeable structure
Hole water yield, grouting amount can just significantly increase.Therefore in the presence of having permeable structure in digging coverage, using physical prospecting
Permeable structure is in the low resistance abnormity area domain that method detects and is coated on assembly extremely dizzy outside permeable structure, rather than water guide structure
Make itself.And the prior art then thinks that low resistance abnormity area domain is permeable structure, does not recognize extremely dizzy presence.
The generation of water inrush accident twice in background technique, most immediate cause are necessary to permeable structure and its abnormal dizzy shortage
Cognition, when being verified using probing, the bottom end for detecting drilling only enters abnormal dizzy superficial part, do not enter in permeable structure, because
Fail really to disclose permeable structure when this drilling verification, fails to administer in advance, so as to cause back production water inrush accident.
When detecting the permeable structure of working face deep concealed, first according to coal field geology, hydrogeologic condition and digging work
Make space of planes spread situation, before working face extraction, using underground transient electromagnetic detecting method and/or micro seismic monitoring method, visits
Low resistance abnormity area domain space distribution situation in bright digging coverage.Transient electromagnetic detecting method and/or micro seismic monitoring in underground
In method, permeable structure and its it is abnormal it is dizzy in there are geophysical anomaly, when detection low resistance abnormity area domain can present low-resistivity,
Features intensively occur etc. for high water level, Gao Shuiwen, microseismic event.
It is abnormal that low-resistance in digging coverage is detected out by underground transient electromagnetic detecting method and/or micro seismic monitoring method
After regional space distribution situation, permeable structure is verified by drilling method, verifying permeable structure whether necessary being and
Its spacing between floor undulation.Drilling method includes down-hole drilling to wearing drilling method and/or ground level branch
Hole drilling method verifies permeable structure.Regardless of method, drilling is both needed to through low resistance abnormity area domain, and drill with
Distance of the low resistance abnormity area domain central axes intersection apart from low resistance abnormity area domain top is both needed to be more than or equal to 30m.
Working face deep concealed permeable structure method for surveying provided in an embodiment of the present invention proposes compared with prior art
Extremely dizzy concept, and then propose a kind of new working face deep concealed permeable structure method for surveying.It, can using this method
It effectively finds out permeable structure developmental state, adopts an effective measure in advance, prevent the generation of water inrush accident.
Working face deep concealed permeable structure method for surveying provided in an embodiment of the present invention, it is hidden with existing working face deep
Volt permeable structure method for surveying has significantly different, and existing working face deep concealed permeable structure method for surveying thinks geophysical prospecting method
Low resistance abnormity area domain space distribution situation in the digging coverage detected, the spatial distribution feelings of as practical permeable structure
Condition, and then in drilling verification, the depth for going deep into low resistance abnormity area domain for the bottom end that drills is smaller, has only been deep into extremely dizzy shallow
Portion, without exploring downward in permeable structure, and then it is dizzy only to disclose exception, and misses out permeable structure, so that probe result is not
Accurately, the generation of water inrush accident is easily led to.
The invention proposes extremely dizzy concept, specify that low-resistance is abnormal in digging coverage that geophysical prospecting method detects
Regional space distribution situation is the permeable structure detected and the dizzy spatial distribution to combine of exception being coated on outside permeable structure
Situation.Through studying, drilling is goed deep into low resistance abnormity area generally at more than ten meters or so, therefore in drilling phase by extremely dizzy thickness
The depth in domain is adjusted to, drilling with distance of the low resistance abnormity area domain central axes intersection apart from low resistance abnormity area domain top be greater than etc.
In 30m, it is ensured that drilling can be deep into permeable structure completely, be ensure that the accuracy of results of drilling, avoided gushing water thing
Therefore generation, improve the safety of operator during coal mining activity.
As a kind of specific embodiment of working face deep concealed permeable structure method for surveying provided by the invention, please join
Fig. 5 is read, transient electromagnetic detecting method includes three-dimensional probe method before working face coal seam is adopted.
Step 1) the following steps are included:
11) according to coal field geology, hydrogeologic condition and getting working face spatial situation, before working face extraction,
Three-dimensional probe method, verifies domain space distribution situation in low resistance abnormity area in digging coverage before being adopted using working face coal seam；With/
Or
12) according to coal field geology, hydrogeologic condition and getting working face spatial situation, before working face extraction,
Using micro seismic monitoring method, domain space distribution situation in low resistance abnormity area in digging coverage is verified.
When detecting domain space distribution situation in low resistance abnormity area in digging coverage, working face coal seam can be used and adopt preceding solid
Any one of detection method and micro seismic monitoring method or two kinds of detection methods visit working face deep concealed permeable structure
It looks into.Working face adopt before three-dimensional probe methods engineering layout drawing as shown in figure 5, using working face coal seam adopt before three-dimensional probe method into
When row is detected, the omnibearing stereo detection in working face coal seam is realized, space exploration truly is realized, it can be maximum
Limit finds out the gushing water hidden danger situation within the scope of working face coal seam back production destroying infection, effectively avoids accident, guarantees people
The security of the lives and property.The real-time continuous monitoring that working depth then can be achieved, detection are detected using micro seismic monitoring method
As a result accurate.
As a kind of specific embodiment of working face deep concealed permeable structure method for surveying provided by the invention, please join
Fig. 4 is read, transient electromagnetic detecting method further includes roadway multi-azimuth advance detection method.
Tunnelling is additionally provided in step 1) before working face extraction and detects step, step is detected in tunnelling are as follows:
It is adopted during tunnelling according to coal field geology, hydrogeologic condition and getting working face spatial situation
With roadway multi-azimuth advance detection method, the meet head on water content or unfavorable geologic body on front and periphery of tunnel is detected.
Roadway multi-azimuth advance detection method work arrangement figure is as shown in figure 4, using roadway multi-azimuth advance detection method
Detected by conventional forward probe can only control front one line " line detection ", be extended to tunnel meet head on for vertex,
Plane control range is fan-shaped, space control range is square cone " body detection ", and " one-dimensional detection " is extended to " multidimensional
Detection "；Multiple orientation such as control range covering tunnel front, side front, oblique upper, obliquely downward are detected, it can be to the maximum extent
Gushing water hidden danger situation is lain concealed in the range of involving when detecting, finding out tunnelling, provides geophysical prospecting technology foundation for driving safety；
Two kinds of azimuthal orientation methods are oriented using geometric orientation and tilt gauge, eliminate various influences of the external environment on azimuthal orientation,
Simple and convenient for operation, practical, measurement effect is good, improves work efficiency.
As a kind of specific embodiment of working face deep concealed permeable structure method for surveying provided by the invention, please join
Fig. 9 is read, micro seismic monitoring method carries out micro seismic monitoring using the full arrangement that surrounds, and adjacent measuring point longitudinal pitch is less than or equal to
120m, horizontal spacing are more than or equal to 10m, height difference is more than or equal to 5m.
Micro seismic monitoring method carries out micro seismic monitoring using the full arrangement that surrounds, and detection result is accurate, and search coverage can be with
Covering floor undulation overlay area comprehensively.Full enclosed micro seismic monitoring methods engineering layout drawing is as shown in Figure 9.
As a kind of specific embodiment of working face deep concealed permeable structure method for surveying provided by the invention, please join
Figure 10 is read, step 2) includes step 21) and/or step 22).
When step 21) is using down-hole drilling to drilling method progress drillhole validation is worn, through two drilling is spudded in
Position is located at the two sides in low resistance abnormity area domain, and two drilling a little is located on the central axes in low resistance abnormity area domain to wearing, and
Two drilling is more than or equal to 30m to wearing a little distance apart from low resistance abnormity area domain top, and two drill that extend through low-resistance different
Normal region；And/or since drilling has certain aperture, it is mentioned here " two drilling to wearing a little apart from low resistance abnormity area
The distance on domain top is more than or equal to the distance to the top worn a little apart from low resistance abnormity area domain top that 30m " refers to two drilling
More than or equal to 30m.
Step 22) is when carrying out drillhole validation using horizontal branch hole method, and low-resistance is run through in horizontal branch hole horizontal direction
Abnormal area, vertical direction are located at the distance in aquifer in Ordovician limestone or apart from low resistance abnormity area domain top and are more than or equal to 60m.
Drillhole validation can be verified using any one of step 21) and step 22) or two ways.Using underground
Drilling to when wearing drilling method and carrying out drillhole validation, low resistance abnormity area domain two sides respectively to inclining in the middle part of the domain of low resistance abnormity area
Inclined borehole, so that two drilling is located on the central axes in low resistance abnormity area domain to wearing point (i.e. intersection point), and two pairs to drill
Spacing of the top apart from low resistance abnormity area domain top worn a little is more than or equal to 30m, it is ensured that drilling can be deep into water guide completely
In construction, the accuracy of results of drilling ensure that, avoid the generation of water inrush accident, improve operator during coal mining activity
The safety of member.Wherein, two drillings extend through the low resistance abnormity area domain, convenient for the slip casting after permeable structure verifying
It administers.
When carrying out drillhole validation using horizontal branch hole method, the vertical direction in horizontal branch hole is located in aquifer in Ordovician limestone
Or the spacing apart from low resistance abnormity area domain top is more than or equal to 60m, greater than extremely dizzy thickness, it is ensured that drilling is complete
It can be deep into permeable structure, ensure that the accuracy of results of drilling, avoid the generation of water inrush accident, improve coal mining and make
The safety of operator during industry.The horizontal direction in horizontal branch hole runs through the low resistance abnormity area domain, is convenient for water guide structure
Grouting treatment after making verifying.
The present invention also provides a kind of working face deep concealed permeable structure administering methods.Please refer to Fig. 1 to Figure 10, the work
Make face deep concealed permeable structure administering method, comprising the following steps:
A) permeable structure situation is detected using working face deep concealed permeable structure method for surveying；
B) according to the spatial position in low resistance abnormity area domain and morphological feature, permeable structure type is determined；
C) permeable structure is administered according to permeable structure type.
Working face deep concealed permeable structure administering method provided in an embodiment of the present invention uses above-mentioned working face deep
Latent permeable structure method for surveying carries out permeable structure and detects, it is ensured that drilling can be deep into permeable structure completely, be guaranteed
The accuracy of results of drilling, can effectively find out permeable structure developmental state, take convenient for operator effectively to administer in advance and arrange
It applies, prevents the generation of water inrush accident, avoid the generation of water inrush accident, improve the safety of operator during coal mining activity
Property.Wherein, there are mainly three types of type, including water guide karst collapse col umn, water conductive fault and water flowing fractured zone, these three types for permeable structure
Corresponding exception is dizzy also to show different forms.Water guide karst collapse col umn is extremely dizzy in nearly upright, bar shape spread, as shown in Figure 6；
The extremely dizzy inclined plate spread of water conductive fault, it is in upright plate that turnover, which occurs, at top, as shown in Figure 7；Water flowing fractured zone is different
It is often dizzy substantially similar with the extremely dizzy spatial shape of water conductive fault, but the extension of across pitch direction is limited, and width is larger, as shown in Figure 8.
When detecting, permeable structure can be judged according to the detection result of underground transient electromagnetic detecting method and/or micro seismic monitoring method
Type is chosen corresponding resolution and is administered to permeable structure later according to the concrete type of permeable structure.And pass through step
It is rapid that domain space distribution situation in low resistance abnormity area in digging coverage 1) can be verified in advance, foundation is provided for conduit pipe improvement,
Ensure that permeable structure can be administered accurately.
As a kind of specific embodiment of working face deep concealed permeable structure administering method provided by the invention, step
C) step d), step d) are provided with after are as follows:
During working face extraction, using micro seismic monitoring method, monitors, detects low resistance abnormity area in Mining failure circle of influence
Domain space changes in distribution situation carries out dynamic monitoring evaluation to permeable structure regulation effect and back production safety.
Permeable structure regulation effect can administer front and back low resistance abnormity area domain space changes in distribution situation according to bored grouting, sentence
Disconnected permeable structure dizzy whether change extremely makes evaluation, abnormal dizzy range shorter or, the abnormal dizzy space rule effective to administer that disappear
Modular invariance be it is invalid, can working face, which be exploited, after improvement to be evaluated in conjunction with water gush face coefficient, vulnerability index etc..
Other variations whether are extended or occur according to permeable structure in mining process is extremely dizzy, it can be to working face extraction
Safety and gushing water hazardous location make evaluation, wherein permeable structure extremely it is dizzy whether to top extension be occur gushing water
Most important criterion.
As a kind of specific embodiment of working face deep concealed permeable structure administering method provided by the invention, step
D) in monitoring duration be by before working face extraction by 1 month after back production.
Micro seismic monitoring method monitors duration by before working face extraction, terminates by 1 month after back production, so that work
Rest and reorganization stage after the face back production preparation stage to working face extraction, the i.e. almost whole flow process of coal mining operation supervise in microseism
Among survey, so that middle working depth lies concealed any variation of permeable structure generation during this, it can be in time by operator
Member perceives, and then finds that permeable structure is abnormal in time convenient for operator and administer in time, and then ensure that coal mining stages operating
Safety.
As a kind of specific embodiment of working face deep concealed permeable structure method for surveying provided by the invention, please join
Fig. 9 is read, micro seismic monitoring method carries out micro seismic monitoring using the full arrangement that surrounds, and adjacent measuring point longitudinal pitch is less than or equal to
120m, horizontal spacing are more than or equal to 10m, height difference is more than or equal to 5m.
Micro seismic monitoring method carries out micro seismic monitoring using the full arrangement that surrounds, and detection result is accurate, and search coverage can be with
Covering floor undulation overlay area comprehensively.Full enclosed micro seismic monitoring methods engineering layout drawing is as shown in Figure 9.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. working face deep concealed permeable structure method for surveying, which comprises the following steps:
1) according to coal field geology, hydrogeologic condition and getting working face spatial situation, before working face extraction, using well
Lower transient electromagnetic detecting method and/or micro seismic monitoring method verify low resistance abnormity area domain space in digging coverage and are distributed feelings
Condition；
2) the low resistance abnormity area domain space distribution situation in the digging coverage verified according to the step 1), using underground
Drilling carries out drillhole validation to drilling method and/or ground level branched hole drilling method is worn；If thering is water to gush out in drilling, recognize
For the low resistance abnormity area domain, there are permeable structures；Wherein, drilling runs through the low resistance abnormity area domain, and drills and the low-resistance
Distance of the abnormal area central axes intersection apart from low resistance abnormity area domain top is more than or equal to 30m.
2. working face deep concealed permeable structure method for surveying as described in claim 1, it is characterised in that: the transient electromagnetic
Detection method includes three-dimensional probe method before working face coal seam is adopted；
The step 1) the following steps are included:
11) it according to coal field geology, hydrogeologic condition and getting working face spatial situation, before working face extraction, uses
Three-dimensional probe method, verifies domain space distribution situation in low resistance abnormity area in digging coverage before working face coal seam is adopted；And/or
12) it according to coal field geology, hydrogeologic condition and getting working face spatial situation, before working face extraction, uses
Micro seismic monitoring method verifies domain space distribution situation in low resistance abnormity area in digging coverage.
3. working face deep concealed permeable structure method for surveying as claimed in claim 2, it is characterised in that: the transient electromagnetic
Detection method further includes roadway multi-azimuth advance detection method；
Tunnelling is additionally provided in the step 1) before working face extraction and detects step, step is detected in the tunnelling are as follows:
According to coal field geology, hydrogeologic condition and getting working face spatial situation, during tunnelling, using institute
Roadway multi-azimuth advance detection method is stated, front is met head on to tunnel and the water content or unfavorable geologic body on periphery detects.
4. working face deep concealed permeable structure method for surveying as described in claim 1, it is characterised in that: the micro seismic monitoring
Method carries out micro seismic monitoring using the full arrangement that surrounds, and adjacent measuring point longitudinal pitch is less than or equal to 120m, horizontal spacing is greater than
It is more than or equal to 5m equal to 10m, height difference.
5. working face deep concealed permeable structure method for surveying according to any one of claims 1-4, which is characterized in that described
Step 2) the following steps are included:
21) when using down-hole drilling to wearing drilling method progress drillhole validation, the positions difference positions of spudding in of through two drilling
In the two sides in the low resistance abnormity area domain, two drilling to wearing a little on the central axes in the low resistance abnormity area domain,
And two drilling to the distance worn apart from low resistance abnormity area domain top is more than or equal to 30m, two drillings
Extend through the low resistance abnormity area domain；And/or
22) when carrying out drillhole validation using horizontal branch hole method, the low resistance abnormity area is run through in horizontal branch hole horizontal direction
Domain, vertical direction are located at the distance in aquifer in Ordovician limestone or apart from low resistance abnormity area domain top and are more than or equal to 60m.
6. working face deep concealed permeable structure administering method, which comprises the following steps:
A) permeable structure is detected using any one of the claim 1-5 working face deep concealed permeable structure method for surveying
Situation；
B) according to the spatial position in the low resistance abnormity area domain and morphological feature, the permeable structure type is determined；
C) permeable structure is administered according to the permeable structure type.
7. working face deep concealed permeable structure administering method as claimed in claim 6, which is characterized in that after the step c)
It is provided with step d), the step d) are as follows:
During working face extraction, using the micro seismic monitoring method, monitor, to detect the low-resistance in Mining failure circle of influence different
Normal regional space changes in distribution situation carries out dynamic monitoring evaluation to permeable structure regulation effect and back production safety.
8. working face deep concealed permeable structure administering method as claimed in claim 7, it is characterised in that: in the step d)
Monitor duration be by before working face extraction by 1 month after back production.
9. working face deep concealed permeable structure administering method as claimed in claim 7 or 8, it is characterised in that: the microseism
Monitoring method carries out micro seismic monitoring using the full arrangement that surrounds, and adjacent measuring point longitudinal pitch is less than or equal to 120m, horizontal spacing
It is more than or equal to 5m more than or equal to 10m, height difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300639.4A CN109944635B (en) | 2019-04-15 | 2019-04-15 | Exploration and treatment method for deep hidden water guide structure of working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910300639.4A CN109944635B (en) | 2019-04-15 | 2019-04-15 | Exploration and treatment method for deep hidden water guide structure of working face |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109944635A true CN109944635A (en) | 2019-06-28 |
| CN109944635B CN109944635B (en) | 2021-08-17 |
Family
ID=67015188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910300639.4A Active CN109944635B (en) | 2019-04-15 | 2019-04-15 | Exploration and treatment method for deep hidden water guide structure of working face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109944635B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374440A (en) * | 2021-05-28 | 2021-09-10 | 中煤科工集团西安研究院有限公司 | Rapid plugging method and construction method for water inrush channel of hidden collapse column |
| CN113464203A (en) * | 2021-06-15 | 2021-10-01 | 鄂尔多斯市华兴能源有限责任公司 | Ground-underground combined exploration and treatment method for geological anomalous body of mine |
| CN114000827A (en) * | 2021-11-05 | 2022-02-01 | 中国矿业大学 | Collapse column exploration method based on pressure seepage principle and electromagnetic response characteristics |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645674A (en) * | 2012-04-17 | 2012-08-22 | 河北煤炭科学研究院 | Three-dimensional detection method for use before exploitation of working surface coal bed |
| CN104989453A (en) * | 2015-06-19 | 2015-10-21 | 河北煤炭科学研究院 | Coal mine water burst down-hole full-space real-time continuous monitoring early-warning method |
| CN108444889A (en) * | 2018-04-20 | 2018-08-24 | 大连理工大学 | Become pressure adjustable rock cranny testing permeability device |
-
2019
- 2019-04-15 CN CN201910300639.4A patent/CN109944635B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645674A (en) * | 2012-04-17 | 2012-08-22 | 河北煤炭科学研究院 | Three-dimensional detection method for use before exploitation of working surface coal bed |
| CN104989453A (en) * | 2015-06-19 | 2015-10-21 | 河北煤炭科学研究院 | Coal mine water burst down-hole full-space real-time continuous monitoring early-warning method |
| CN108444889A (en) * | 2018-04-20 | 2018-08-24 | 大连理工大学 | Become pressure adjustable rock cranny testing permeability device |
Non-Patent Citations (1)
| Title |
|---|
| 关永强: "峰峰矿区深部矿井水文地质特征及水害防治技术", 《煤炭与化工》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374440A (en) * | 2021-05-28 | 2021-09-10 | 中煤科工集团西安研究院有限公司 | Rapid plugging method and construction method for water inrush channel of hidden collapse column |
| CN113464203A (en) * | 2021-06-15 | 2021-10-01 | 鄂尔多斯市华兴能源有限责任公司 | Ground-underground combined exploration and treatment method for geological anomalous body of mine |
| CN114000827A (en) * | 2021-11-05 | 2022-02-01 | 中国矿业大学 | Collapse column exploration method based on pressure seepage principle and electromagnetic response characteristics |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109944635B (en) | 2021-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104481587B (en) | The comprehensive coal working face top plate sandstone fissure water of putting of large mining depth, large span visits anti-method | |
| CN101526009B (en) | Wall rock destabilization acousto-optic-electric integrated monitoring system and monitoring method thereof | |
| CN103742145B (en) | Colliery rich water abnormal area water prevention method | |
| CN102322294B (en) | Comprehensive geological prediction method for karst tunnel construction | |
| CN107132571B (en) | A kind of multi-source seismic interference method for tunnel geological forecast | |
| CN102383779B (en) | Double-layer gob drilling exploration method | |
| CN101581234B (en) | Comprehensive underground test method for deformation and damage of terranes of mining top plate and mining bottom plate of coal bed | |
| CN101270666B (en) | Tunnel influence geological condition section-expanding horizontal drilling estimation and prediction method | |
| CN104181611A (en) | Mine working face top board and bottom board mining breaking fracture development dynamic monitoring method | |
| CN111691872B (en) | Dynamic and accurate detection method for development range and degree of coal seam overlying strata fracture | |
| CN105909254B (en) | Projecting coal bed bottom plate, which is faced upward, wears the advanced area cover coal roadway tunneling method of layer directional hole | |
| CN109944635A (en) | Working face deep concealed permeable structure is detected and administering method | |
| CN105629309A (en) | Bored grouting slurry spatial diffusion range and path description method | |
| CN102768369A (en) | Roadway drivage drilling induced polarization advance water probing forecasting method, device and probe | |
| CN104989453A (en) | Coal mine water burst down-hole full-space real-time continuous monitoring early-warning method | |
| CN105137488B (en) | Ground water field based on artificial fluid injection describes method | |
| CN105652311A (en) | Micro-seismic monitoring method for monitoring water inrush of base plate | |
| CN103389523B (en) | The forecast of tunnel geology and the method and system of construction | |
| CN110221340A (en) | A kind of set of tunneling construction method for forecasting advanced geology | |
| CN102182437B (en) | Method for determining and eliminating hydraulic fracture stress boundary of coal mine underground drilling | |
| Gao et al. | Dynamic monitoring of water in a working face floor using 2D electrical resistivity tomography (ERT) | |
| CN103399354A (en) | Forecasting method and system for tunnel geology | |
| CN113960695A (en) | Fine exploration method for water-rich karst in complex urban environment | |
| CN108915766A (en) | A kind of working face deep concealed conduit pipe method for surveying | |
| Feng‐Shan et al. | APPLICATION OF HIGH‐DENSITY RESISTIVITY METHOD IN DETECTING WATER‐BEARING STRUCTURES AT A SEABED GOLD MINE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 054000 No.126 Tuanjie West Street, Qiaoxi District, Xingtai City, Hebei Province Applicant after: Hebei Coal Science Research Institute Co.,Ltd. Address before: 054000 No.126 Tuanjie West Street, Qiaoxi District, Xingtai City, Hebei Province Applicant before: HEBEI COAL Research Institute |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |